<template>
    <div class="panel-tab__content">
        <el-form size="mini" label-width="90px" @submit.native.prevent>
            <el-form-item label="表单" prop="formKey">
                <el-select
                    v-model="formKey"
                    placeholder="请选择表单"
                    @change="updateElementFormKey"
                    clearable
                >
                    <el-option
                        v-for="item in formOptions"
                        :key="item.formId"
                        :label="item.formName"
                        :value="`key_${item.formId}`"
                    />
                </el-select>
            </el-form-item>
            <el-form-item prop="localScope">
                <span slot="label">
                    <el-tooltip
                        content="若为节点表单，则表单信息仅在此节点可用，默认为全局表单，表单信息在整个流程实例中可用"
                        placement="top-start"
                    >
                        <i class="header-icon el-icon-info"></i>
                    </el-tooltip>
                    <span>节点表单</span>
                </span>
                <el-switch
                    :disabled="type === 'StartEvent'"
                    v-model="localScope"
                    active-text="是"
                    inactive-text="否"
                    @change="updateElementFormScope()"
                />
            </el-form-item>
            <!--      <el-form-item label="表单标识">-->
            <!--        <el-input v-model="formKey" clearable @change="updateElementFormKey" />-->
            <!--      </el-form-item>-->
            <!--      <el-form-item label="业务标识">-->
            <!--        <el-select v-model="businessKey" @change="updateElementBusinessKey">-->
            <!--          <el-option v-for="i in fieldList" :key="i.id" :value="i.id" :label="i.label" />-->
            <!--          <el-option label="无" value="" />-->
            <!--        </el-select>-->
            <!--      </el-form-item>-->
        </el-form>

        <!--字段列表-->
        <!--    <div class="element-property list-property">-->
        <!--      <el-divider><i class="el-icon-coin"></i> 表单字段</el-divider>-->
        <!--      <el-table :data="fieldList" size="mini" max-height="240" border fit>-->
        <!--        <el-table-column label="序号" type="index" width="50px" />-->
        <!--        <el-table-column label="字段名称" prop="label" min-width="80px" show-overflow-tooltip />-->
        <!--        <el-table-column label="字段类型" prop="type" min-width="80px" :formatter="row => fieldType[row.type] || row.type" show-overflow-tooltip />-->
        <!--        <el-table-column label="默认值" prop="defaultValue" min-width="80px" show-overflow-tooltip />-->
        <!--        <el-table-column label="操作" width="90px">-->
        <!--          <template slot-scope="{ row, $index }">-->
        <!--            <el-button size="mini" type="text" @click="openFieldForm(row, $index)">编辑</el-button>-->
        <!--            <el-divider direction="vertical" />-->
        <!--            <el-button size="mini" type="text" style="color: #ff4d4f" @click="removeField(row, $index)">移除</el-button>-->
        <!--          </template>-->
        <!--        </el-table-column>-->
        <!--      </el-table>-->
        <!--    </div>-->
        <!--    <div class="element-drawer__button">-->
        <!--      <el-button size="mini" type="primary" icon="el-icon-plus" @click="openFieldForm(null, -1)">添加字段</el-button>-->
        <!--    </div>-->

        <!--字段配置侧边栏-->
        <!--    <el-drawer :visible.sync="fieldModelVisible" title="字段配置" :size="`${width}px`" append-to-body destroy-on-close>-->
        <!--      <el-form :model="formFieldForm" label-width="90px" size="mini" @submit.native.prevent>-->
        <!--        <el-form-item label="字段ID">-->
        <!--          <el-input v-model="formFieldForm.id" clearable />-->
        <!--        </el-form-item>-->
        <!--        <el-form-item label="类型">-->
        <!--          <el-select v-model="formFieldForm.typeType" placeholder="请选择字段类型" clearable @change="changeFieldTypeType">-->
        <!--            <el-option v-for="(value, key) of fieldType" :label="value" :value="key" :key="key" />-->
        <!--          </el-select>-->
        <!--        </el-form-item>-->
        <!--        <el-form-item label="类型名称" v-if="formFieldForm.typeType === 'custom'">-->
        <!--          <el-input v-model="formFieldForm.type" clearable />-->
        <!--        </el-form-item>-->
        <!--        <el-form-item label="名称">-->
        <!--          <el-input v-model="formFieldForm.label" clearable />-->
        <!--        </el-form-item>-->
        <!--        <el-form-item label="时间格式" v-if="formFieldForm.typeType === 'date'">-->
        <!--          <el-input v-model="formFieldForm.datePattern" clearable />-->
        <!--        </el-form-item>-->
        <!--        <el-form-item label="默认值">-->
        <!--          <el-input v-model="formFieldForm.defaultValue" clearable />-->
        <!--        </el-form-item>-->
        <!--      </el-form>-->

        <!--      &lt;!&ndash; 枚举值设置 &ndash;&gt;-->
        <!--      <template v-if="formFieldForm.type === 'enum'">-->
        <!--        <el-divider key="enum-divider" />-->
        <!--        <p class="listener-filed__title" key="enum-title">-->
        <!--          <span><i class="el-icon-menu"></i>枚举值列表：</span>-->
        <!--          <el-button size="mini" type="primary" @click="openFieldOptionForm(null, -1, 'enum')">添加枚举值</el-button>-->
        <!--        </p>-->
        <!--        <el-table :data="fieldEnumList" size="mini" key="enum-table" max-height="240" border fit>-->
        <!--          <el-table-column label="序号" width="50px" type="index" />-->
        <!--          <el-table-column label="枚举值编号" prop="id" min-width="100px" show-overflow-tooltip />-->
        <!--          <el-table-column label="枚举值名称" prop="name" min-width="100px" show-overflow-tooltip />-->
        <!--          <el-table-column label="操作" width="90px">-->
        <!--            <template slot-scope="{ row, $index }">-->
        <!--              <el-button size="mini" type="text" @click="openFieldOptionForm(row, $index, 'enum')">编辑</el-button>-->
        <!--              <el-divider direction="vertical" />-->
        <!--              <el-button size="mini" type="text" style="color: #ff4d4f" @click="removeFieldOptionItem(row, $index, 'enum')">移除</el-button>-->
        <!--            </template>-->
        <!--          </el-table-column>-->
        <!--        </el-table>-->
        <!--      </template>-->

        <!--      &lt;!&ndash; 校验规则 &ndash;&gt;-->
        <!--      <el-divider key="validation-divider" />-->
        <!--      <p class="listener-filed__title" key="validation-title">-->
        <!--        <span><i class="el-icon-menu"></i>约束条件列表：</span>-->
        <!--        <el-button size="mini" type="primary" @click="openFieldOptionForm(null, -1, 'constraint')">添加约束</el-button>-->
        <!--      </p>-->
        <!--      <el-table :data="fieldConstraintsList" size="mini" key="validation-table" max-height="240" border fit>-->
        <!--        <el-table-column label="序号" width="50px" type="index" />-->
        <!--        <el-table-column label="约束名称" prop="name" min-width="100px" show-overflow-tooltip />-->
        <!--        <el-table-column label="约束配置" prop="config" min-width="100px" show-overflow-tooltip />-->
        <!--        <el-table-column label="操作" width="90px">-->
        <!--          <template slot-scope="{ row, $index }">-->
        <!--            <el-button size="mini" type="text" @click="openFieldOptionForm(row, $index, 'constraint')">编辑</el-button>-->
        <!--            <el-divider direction="vertical" />-->
        <!--            <el-button size="mini" type="text" style="color: #ff4d4f" @click="removeFieldOptionItem(row, $index, 'constraint')">移除</el-button>-->
        <!--          </template>-->
        <!--        </el-table-column>-->
        <!--      </el-table>-->

        <!--      &lt;!&ndash; 表单属性 &ndash;&gt;-->
        <!--      <el-divider key="property-divider" />-->
        <!--      <p class="listener-filed__title" key="property-title">-->
        <!--        <span><i class="el-icon-menu"></i>字段属性列表：</span>-->
        <!--        <el-button size="mini" type="primary" @click="openFieldOptionForm(null, -1, 'property')">添加属性</el-button>-->
        <!--      </p>-->
        <!--      <el-table :data="fieldPropertiesList" size="mini" key="property-table" max-height="240" border fit>-->
        <!--        <el-table-column label="序号" width="50px" type="index" />-->
        <!--        <el-table-column label="属性编号" prop="id" min-width="100px" show-overflow-tooltip />-->
        <!--        <el-table-column label="属性值" prop="value" min-width="100px" show-overflow-tooltip />-->
        <!--        <el-table-column label="操作" width="90px">-->
        <!--          <template slot-scope="{ row, $index }">-->
        <!--            <el-button size="mini" type="text" @click="openFieldOptionForm(row, $index, 'property')">编辑</el-button>-->
        <!--            <el-divider direction="vertical" />-->
        <!--            <el-button size="mini" type="text" style="color: #ff4d4f" @click="removeFieldOptionItem(row, $index, 'property')">移除</el-button>-->
        <!--          </template>-->
        <!--        </el-table-column>-->
        <!--      </el-table>-->

        <!--      &lt;!&ndash; 底部按钮 &ndash;&gt;-->
        <!--      <div class="element-drawer__button">-->
        <!--        <el-button size="mini">取 消</el-button>-->
        <!--        <el-button size="mini" type="primary" @click="saveField">保 存</el-button>-->
        <!--      </div>-->
        <!--    </el-drawer>-->

        <el-dialog
            :visible.sync="fieldOptionModelVisible"
            :title="optionModelTitle"
            width="600px"
            append-to-body
            destroy-on-close
        >
            <el-form
                :model="fieldOptionForm"
                size="mini"
                label-width="96px"
                @submit.native.prevent
            >
                <el-form-item
                    label="编号/ID"
                    v-if="fieldOptionType !== 'constraint'"
                    key="option-id"
                >
                    <el-input v-model="fieldOptionForm.id" clearable />
                </el-form-item>
                <el-form-item
                    label="名称"
                    v-if="fieldOptionType !== 'property'"
                    key="option-name"
                >
                    <el-input v-model="fieldOptionForm.name" clearable />
                </el-form-item>
                <el-form-item
                    label="配置"
                    v-if="fieldOptionType === 'constraint'"
                    key="option-config"
                >
                    <el-input v-model="fieldOptionForm.config" clearable />
                </el-form-item>
                <el-form-item
                    label="值"
                    v-if="fieldOptionType === 'property'"
                    key="option-value"
                >
                    <el-input v-model="fieldOptionForm.value" clearable />
                </el-form-item>
            </el-form>
            <template slot="footer">
                <el-button size="mini" @click="fieldOptionModelVisible = false"
                    >取 消</el-button
                >
                <el-button size="mini" type="primary" @click="saveFieldOption"
                    >确 定</el-button
                >
            </template>
        </el-dialog>
    </div>
</template>

<script>
import { listForm } from '@/http/apis/workflow/mgr/form'

export default {
    name: 'ElementForm',
    props: {
        id: String,
        type: String
    },
    inject: {
        prefix: 'prefix',
        width: 'width'
    },
    data() {
        return {
            formOptions: [],
            formKey: '',
            localScope: false,
            businessKey: '',
            optionModelTitle: '',
            fieldList: [],
            formFieldForm: {},
            fieldType: {
                long: '长整型',
                string: '字符串',
                boolean: '布尔类',
                date: '日期类',
                enum: '枚举类',
                custom: '自定义类型'
            },
            formFieldIndex: -1, // 编辑中的字段， -1 为新增
            formFieldOptionIndex: -1, // 编辑中的字段配置项， -1 为新增
            fieldModelVisible: false,
            fieldOptionModelVisible: false,
            fieldOptionForm: {}, // 当前激活的字段配置项数据
            fieldOptionType: '', // 当前激活的字段配置项弹窗 类型
            fieldEnumList: [], // 枚举值列表
            fieldConstraintsList: [], // 约束条件列表
            fieldPropertiesList: [] // 绑定属性列表
        }
    },
    watch: {
        id: {
            immediate: true,
            handler(val) {
                val && val.length && this.$nextTick(() => this.resetFormList())
            }
        }
    },
    created() {
        /** 查询流程分类列表 */
        this.getFormList()
    },
    methods: {
        /** 查询表单列表 */
        async getFormList() {
            // listForm().then(response => this.formOptions = response.rows)
            let res = await listForm()
            this.formOptions = res.data
        },
        resetFormList() {
            this.bpmnELement = window.bpmnInstances.bpmnElement
            this.formKey = this.bpmnELement.businessObject.formKey
            this.localScope = this.bpmnELement.businessObject.localScope
            // 获取元素扩展属性 或者 创建扩展属性
            this.elExtensionElements =
                this.bpmnELement.businessObject.get('extensionElements') ||
                window.bpmnInstances.moddle.create('bpmn:ExtensionElements', {
                    values: []
                })
            // 获取元素表单配置 或者 创建新的表单配置
            // this.formData =
            //   this.elExtensionElements.values.filter(ex => ex.$type === `${this.prefix}:FormData`)?.[0] ||
            //   window.bpmnInstances.moddle.create(`${this.prefix}:FormData`, { fields: [] });
            // 业务标识 businessKey， 绑定在 formData 中
            // this.businessKey = this.formData.businessKey;

            // 保留剩余扩展元素，便于后面更新该元素对应属性
            this.otherExtensions = this.elExtensionElements.values.filter(
                ex => ex.$type !== `${this.prefix}:FormData`
            )

            // 复制原始值，填充表格
            // this.fieldList = JSON.parse(JSON.stringify(this.formData.fields || []));

            // 更新元素扩展属性，避免后续报错
            // this.updateElementExtensions();
        },
        updateElementFormKey() {
            window.bpmnInstances.modeling.updateProperties(this.bpmnELement, {
                formKey: this.formKey
            })
        },
        updateElementFormScope() {
            window.bpmnInstances.modeling.updateProperties(this.bpmnELement, {
                localScope: this.localScope
            })
        },
        updateElementBusinessKey() {
            window.bpmnInstances.modeling.updateModdleProperties(
                this.bpmnELement,
                this.formData,
                { businessKey: this.businessKey }
            )
        },
        // 根据类型调整字段type
        changeFieldTypeType(type) {
            this.$set(this.formFieldForm, 'type', type === 'custom' ? '' : type)
        },

        // 打开字段详情侧边栏
        openFieldForm(field, index) {
            this.formFieldIndex = index
            if (index !== -1) {
                const FieldObject = this.formData.fields[index]
                this.formFieldForm = JSON.parse(JSON.stringify(field))
                // 设置自定义类型
                this.$set(
                    this.formFieldForm,
                    'typeType',
                    !this.fieldType[field.type] ? 'custom' : field.type
                )
                // 初始化枚举值列表
                field.type === 'enum' &&
                    (this.fieldEnumList = JSON.parse(
                        JSON.stringify(FieldObject?.values || [])
                    ))
                // 初始化约束条件列表
                this.fieldConstraintsList = JSON.parse(
                    JSON.stringify(FieldObject?.validation?.constraints || [])
                )
                // 初始化自定义属性列表
                this.fieldPropertiesList = JSON.parse(
                    JSON.stringify(FieldObject?.properties?.values || [])
                )
            } else {
                this.formFieldForm = {}
                // 初始化枚举值列表
                this.fieldEnumList = []
                // 初始化约束条件列表
                this.fieldConstraintsList = []
                // 初始化自定义属性列表
                this.fieldPropertiesList = []
            }
            this.fieldModelVisible = true
        },
        // 打开字段 某个 配置项 弹窗
        openFieldOptionForm(option, index, type) {
            this.fieldOptionModelVisible = true
            this.fieldOptionType = type
            this.formFieldOptionIndex = index
            if (type === 'property') {
                this.fieldOptionForm = option
                    ? JSON.parse(JSON.stringify(option))
                    : {}
                return (this.optionModelTitle = '属性配置')
            }
            if (type === 'enum') {
                this.fieldOptionForm = option
                    ? JSON.parse(JSON.stringify(option))
                    : {}
                return (this.optionModelTitle = '枚举值配置')
            }
            this.fieldOptionForm = option
                ? JSON.parse(JSON.stringify(option))
                : {}
            return (this.optionModelTitle = '约束条件配置')
        },

        // 保存字段 某个 配置项
        saveFieldOption() {
            if (this.formFieldOptionIndex === -1) {
                if (this.fieldOptionType === 'property') {
                    this.fieldPropertiesList.push(this.fieldOptionForm)
                }
                if (this.fieldOptionType === 'constraint') {
                    this.fieldConstraintsList.push(this.fieldOptionForm)
                }
                if (this.fieldOptionType === 'enum') {
                    this.fieldEnumList.push(this.fieldOptionForm)
                }
            } else {
                this.fieldOptionType === 'property' &&
                    this.fieldPropertiesList.splice(
                        this.formFieldOptionIndex,
                        1,
                        this.fieldOptionForm
                    )
                this.fieldOptionType === 'constraint' &&
                    this.fieldConstraintsList.splice(
                        this.formFieldOptionIndex,
                        1,
                        this.fieldOptionForm
                    )
                this.fieldOptionType === 'enum' &&
                    this.fieldEnumList.splice(
                        this.formFieldOptionIndex,
                        1,
                        this.fieldOptionForm
                    )
            }
            this.fieldOptionModelVisible = false
            this.fieldOptionForm = {}
        },
        // 保存字段配置
        saveField() {
            const {
                id,
                type,
                label,
                defaultValue,
                datePattern
            } = this.formFieldForm
            const Field = window.bpmnInstances.moddle.create(
                `${this.prefix}:FormField`,
                { id, type, label }
            )
            defaultValue && (Field.defaultValue = defaultValue)
            datePattern && (Field.datePattern = datePattern)
            // 构建属性
            if (this.fieldPropertiesList && this.fieldPropertiesList.length) {
                const fieldPropertyList = this.fieldPropertiesList.map(fp => {
                    return window.bpmnInstances.moddle.create(
                        `${this.prefix}:Property`,
                        { id: fp.id, value: fp.value }
                    )
                })
                Field.properties = window.bpmnInstances.moddle.create(
                    `${this.prefix}:Properties`,
                    { values: fieldPropertyList }
                )
            }
            // 构建校验规则
            if (this.fieldConstraintsList && this.fieldConstraintsList.length) {
                const fieldConstraintList = this.fieldConstraintsList.map(
                    fc => {
                        return window.bpmnInstances.moddle.create(
                            `${this.prefix}:Constraint`,
                            { name: fc.name, config: fc.config }
                        )
                    }
                )
                Field.validation = window.bpmnInstances.moddle.create(
                    `${this.prefix}:Validation`,
                    { constraints: fieldConstraintList }
                )
            }
            // 构建枚举值
            if (this.fieldEnumList && this.fieldEnumList.length) {
                Field.values = this.fieldEnumList.map(fe => {
                    return window.bpmnInstances.moddle.create(
                        `${this.prefix}:Value`,
                        { name: fe.name, id: fe.id }
                    )
                })
            }
            // 更新数组 与 表单配置实例
            if (this.formFieldIndex === -1) {
                this.fieldList.push(this.formFieldForm)
                this.formData.fields.push(Field)
            } else {
                this.fieldList.splice(
                    this.formFieldIndex,
                    1,
                    this.formFieldForm
                )
                this.formData.fields.splice(this.formFieldIndex, 1, Field)
            }
            this.updateElementExtensions()
            this.fieldModelVisible = false
        },

        // 移除某个 字段的 配置项
        removeFieldOptionItem(option, index, type) {
            if (type === 'property') {
                this.fieldPropertiesList.splice(index, 1)
                return
            }
            if (type === 'enum') {
                this.fieldEnumList.splice(index, 1)
                return
            }
            this.fieldConstraintsList.splice(index, 1)
        },
        // 移除 字段
        removeField(field, index) {
            this.fieldList.splice(index, 1)
            this.formData.fields.splice(index, 1)
            this.updateElementExtensions()
        },

        updateElementExtensions() {
            // 更新回扩展元素
            const newElExtensionElements = window.bpmnInstances.moddle.create(
                `bpmn:ExtensionElements`,
                {
                    values: this.otherExtensions.concat(this.formData)
                }
            )
            // 更新到元素上
            window.bpmnInstances.modeling.updateProperties(this.bpmnELement, {
                extensionElements: newElExtensionElements
            })
        }
    }
}
</script>
